Question: What is the Class II combustible liquid with the highest autoignition temperature?
Paraphrase: What is the highest autoignition temperature Class II fuel liquid?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q21009057 . ?ent wdt:P2199 ?obj } ORDER BY DESC(?obj)LIMIT 5 
Answer: formic acid, acetic anhydride, kerosene